cadger - 1. A carrier: esp. a species of itinerant dealer who travels with a horse and cart (or formerly with a pack-horse), collecting butter, eggs, poultry, etc., from remote country farms, for disposal in the town, and at the same time supplying the rural districts with small wares from the shops.
2a. An itinerant dealer, a hawker, a street-seller.
b. One who goes about begging or getting his living by questionable means.

A love of all that is roving and cadgerlike in nature. -Dickens

p.s. - all of the various saloons stem from the same F.
roots as salon; we have had saloon rooms (salons), saloon cars (on railroad trains), and saloon bars.

p.p.s. - saloon as a motor car = sedan

p.p.p.s. - I'd agree that a sedan has four(4) doors and a coupe (or coupé outside the US) has two(2).